thirty
Meanings
num
- The cardinal number occurring after twenty-nine and before thirty-one, represented in Arabic numerals as 30.
noun
- A rack of thirty beers.
- A commercial lasting 30 seconds.
Pronunciation
Word forms
Etymology
From Middle English thirty, metathetic alternant of Middle English thriti, þrittiȝ, from Old English þrītiġ (“thirty”), from Proto-Germanic *þrīz tigiwiz (“thirty”, literally “three tens”), equivalent to three + -ty. Cognate with Scots therty, tretty (“thirty”), West Frisian tritich (“thirty”), Dutch dertig (“thirty”), German dreißig (“thirty”).
Synonyms
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